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SHORTCUT MENU

•  Press the M button to enter the shortcut menu

•  Press the Up/Down button to switch between PIP,   

  Screen BRI, Stadiametric Rangefinder, Hot track    

  and energy-saving modes

Picture In Picture (PIP) 

•  With the PIP window  open,  select the left /  

 

  middle / right for placement

•  The window image is 2X magnification of the  

 

  main image

Screen Brightness

•  Brightness levels can be adjusted from 10 to 

  100 percent

Stadiametric Rangefinder

The stadia metric rangefinder lets you estimate the 

distance of a target . There are three stadia 

available on the device – Rabbit (35 cm / 13.7 in.), 

Boar (35 cm / 13.7 in.), Deer (35 cm / 13.7 in.). 

How to use the stadia:

•  Align the lower horizontal line with the bottom of   

  the target image, press the Up/Down button to    

  change the width between the upper and lower    

  horizontal lines until the upper horizontal line is    

  aligned with the top of the target icon

•  The distance can now be calculated and   

 

  displayed automatically

•  By comparing the target size with the three  

 

  reference animal sizes, the user can roughly  

 

  calculate the distance of the target

Hot Track

•  When hot track is turned on, the active crosshair 

  tracks the point with the highest temperature in  

  the scene

Super Energy-Saving Mode

•  In the super energy-saving mode, screen bright- 

  ness is reduced to 30 percent and the WiFi is  

  turned off

•  When the Super energy-saving mode is off, the  

  screen brightness and WiFi are restored to their  

  original state

NOTE - If WiFi cannot be turned on, please check if 

the super energy-saving mode is off.

MAIN MENU

•  Press and hold the M button to enter the main menu

•  Press the Up/Down button to switch between  

  Image quality adjustment, Calibration mode,  

  WiFi, power saving settings, indication settings,  

  general settings and other settings

Image Quality Adjustment

•  Image enhancement - When the image enhance- 

  ment is turned on, the image of the target can be  

 enhanced

•  Scene mode - Image brightness and contrast can  

  be adjusted for each scene mode to achieve the  

  best image

Color Palettes

•  White hot - The objects with higher temperature  

  show in white or light gray

•  Black hot - The objects with higher temperature  

  show in black or dark gray

•  Red hot - The objects with higher temperature  

  show in red

•  Adjustable red hot - The objects with higher  

  temperature show in red. Users can adjust the  

  intensity of range of red heat from level 1 to 10

7

•  Iron - The objects with higher temperature show  

  in iron red

•  Blue hot - The objects with lowest temperature  

  show in blue or dark blue, and the object with  

  higher temperature shows in red

Brightness

•  Adjustable from level 1 to 10 level

Contrast

•  Adjustable from level 1 to 10 level

Calibration Mode

•  Automatic - The device automatically corrects the  

  image quality without any action

•  Scene - The user manually corrects the image  

  quality as needed. For manual correction, the  

  lens cover needs to be attached before calibration

•  Shutter -  The user manually corrects the image  

  quality as needed and the device shutter closes  

  for calibration.

WiFi

It can be connected to the mobile phone via WiFi 

and the thermal imager can be operated remotely 

via the mobile phone APP. When WiFi is turned on, 

but not connected, the WiFi icon flashes and the 

WiFi name is displayed at the top of the screen. 

When the WiFi is connected, the WiFi icon is 

always on

•  Mobile phone APP -  Search and 

  download 'Burris Thermal' APP in 

  the mobile phone app market. 

  Open the app, and find the WiFi 

  name of “Burris BTH” in your mobile phone WiFi  

  settings, enter the password '12345678', then  

  after the connection is successful, the user can  

  operate remotely

•  Android -  Please search and download in 

  Google play

•  IOS - Please search and download in the 

  APP store

Power Saving Settings

•  Auto Stand-By - If there is no operation in the        

  setting time, it enters Stand-by mode. If the work    

  indicator is on before entering Standby mode, the  

  work indicator will flash in Stand-by mode

•  Auto Power -  If there is no operation in the setting  

  time, it will power off automatically

Note - Auto Stand-by and Auto power-off cannot be 

performed while WiFi is connected.

Indication Settings

•  Charging indication - In the charging state, you    

  can turn the charging indicator on or off

•  Working indication - In the normal working state,    

  you can turn the working indicator on or off

General Settings

•  Time style -  Select 12-hour or 24-hour style

•  Date style -  Choose different date styles 

  according to your preference

•  Time setup - Adjust the current date and time

Watermark Settings

•  Users can choose the display style of date and    

  time watermark on the screen 

Language Settings

•  Language choices include English/Russian/

 German/French/Chinese.

Memory Card Formatting

•  Allows the use to format and empty onboard  

 

 storage

Restore Default

•  This function restores the factory settings.

Other Settings 

(optional accessories feature 

settings)

• Ranging

•  Ranging adjustment

• Pointer

•  Pointer adjustment

These functions are used for auxiliary Optional 

accessories. There are differences between the 

individual models. For details, please refer to the 

accessory manual.

Charging

When using the thermal imager for the first time, 

use the USB charger to charge battery for at least 

four hours. When charging, insert the matching 

Type C USB charging cable and plug in the power.

Charging specifications: 5V, 2A.

Charging indicator is red during normal charging.

Charging indicator is green when charging is 

complete.

Do not charge the battery in an environment over 

40˚C or 104˚ F.

Note - Charging when the thermal imager

is being used does not charge the battery. 

This icon indicates the unit is using the 

external power for normal operations. 

This icon indicates that the external 

power supply is charging the battery.

Video Output

There is a video output port beside the USB inter-

face on the side of the thermal imager, and is 

simply plug and play.

The screen image of the thermal imager can be 

output to an external screen through the matching 

HDMI video cable. There are two display modes, 

either the external screen or the screen of the 

device, but only one mode is active.

Note - When HDMI is used to connect the external 

display screen, the real-time screen can only be 

viewed by the external display. There is no screen 

display on the screen of this device. When the 

HDMI cable is unplugged, the screen of the device 

is restored.

Storage and Maintenance

When the thermal imager will be not used for a 

long time, store in a dry, well-ventilated environ-

ment and charge the thermal imager at least four 

hours every two months during the storage

The infrared lens of the thermal imager is coated 

with an anti-reflection film. Clean the lens only 

when dirt or smudges are present. Frequent 

scrubbing may damage the lens coating.

To clean non-optical surfaces of the thermal imager, 

do not scrub with chemical solvents or cleaners. 

On exterior surfaces, wipe with a soft and dry 

microfiber cloth.

Warranty

The Burris Thermal Hand Held thermal products are 

covered by Limited Warranty and Burris will repair or 

replace your product if it is defective. Do not 

disassemble the thermal imager as this will void the 

warranty. Contact your nearest Burris dealer for 

assistance.

For detailed warranty information scan the QR 

codes below.

 

US Warranty 

International Warranty

This manual is available in German, French, Italian 

and Spanish translations at available at https://

www.burrisoptics.com/sites/default/files/

content/products/manuals/thermal/handheld

Summary of Contents for BTH 25

Page 1: ...USER MANUAL BTH 25 BTH 35 BTH 50 BURRIS THERMAL H A N D H E L D ...

Page 2: ...sity light sources such as the sun carbon dioxide lasers and electric welding machines 2 The thermal imager combines precision optical instruments and electrostatically sensitive electronics any abuse of the thermal imager and its accessories can compromise performance and longevity and may void the warranty THERMAL SIGHT FEATURES FOCUSING RING PHOTO VIDEO BUTTON DIOPTER KNOB DOWN BUTTON MENU BUTT...

Page 3: ...cation 1 7 6 8 2 3 9 2 3 3 13 2 Power Adapter 5V DC Special adapter charging Working hours 5 hours 25 C Interface USB TYPE C for Power In File Transfer Video Interface Micro HDMI External Connection Picatinny rail MODEL PRODUCT FUNCTION BURRIS THERMAL HAND HELD 25mm 35mm 50mm Photo YES Video YES Screen brightness 1 10 levels Image brightness 1 10 levels Image contrast 1 10 levels Scene mode Enhanc...

Page 4: ...CURRENT STATUS SHORT PRESS LONG PRESS Power Button Power off Power on Zoom out Power on Calibration Display off Power off Display off Display on Up Button No display in the menu bar Switch to scene mode Zoom in Display in the menu bar Upwardswitchingoptions Changeparametervalue M Menu Button No display in the menu bar Display in the menu bar Enter the shortcut menu Enter the main menu Enterthesub ...

Page 5: ...m 13 7 in Boar 35 cm 13 7 in Deer 35 cm 13 7 in How to use the stadia Align the lower horizontal line with the bottom of the target image press the Up Down button to change the width between the upper and lower horizontal lines until the upper horizontal line is aligned with the top of the target icon The distance can now be calculated and displayed automatically By comparing the target size with ...

Page 6: ...n to switch between Image quality adjustment Calibration mode WiFi power saving settings indication settings general settings and other settings Image Quality Adjustment Image enhancement When the image enhance ment is turned on the image of the target can be enhanced Scene mode Image brightness and contrast can be adjusted for each scene mode to achieve the best image Color Palettes White hot The...

Page 7: ...ts the image quality as needed and the device shutter closes for calibration WiFi It can be connected to the mobile phone via WiFi and the thermal imager can be operated remotely via the mobile phone APP When WiFi is turned on but not connected the WiFi icon flashes and the WiFi name is displayed at the top of the screen When the WiFi is connected the WiFi icon is always on Mobile phone APP Search...

Page 8: ...tor on or off Working indication In the normal working state you can turn the working indicator on or off General Settings Time style Select 12 hour or 24 hour style Date style Choose different date styles according to your preference Time setup Adjust the current date and time Watermark Settings Users can choose the display style of date and time watermark on the screen Language Settings Language...

Page 9: ...F Note Charging when the thermal imager is being used does not charge the battery This icon indicates the unit is using the external power for normal operations This icon indicates that the external power supply is charging the battery Video Output There is a video output port beside the USB inter face on the side of the thermal imager and is simply plug and play The screen image of the thermal im...

Page 10: ...ces of the thermal imager do not scrub with chemical solvents or cleaners On exterior surfaces wipe with a soft and dry microfiber cloth Warranty The Burris Thermal Hand Held thermal products are covered by Limited Warranty and Burris will repair or replace your product if it is defective Do not disassemble the thermal imager as this will void the warranty Contact your nearest Burris dealer for as...

Page 11: ...10 Burris Thermal Hand Held ...

Page 12: ...Burris Company 331 East 8th St Greeley CO 80631 970 356 1670 BurrisOptics com Facebook com BurrisOptics ...

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